Mauricio Pochettino won't repeat Osvaldo 'mistake' with Berahino

Pochettino's signing of Dani Osvaldo, shown here on loan to Inter Milan, has made the Spurs boss wary of unsettling his dressing room.

Mauricio Pochettino will not risk Tottenham's dressing-room harmony after learning from his "mistake'' in signing Dani Osvaldo at Southampton.

Spurs boss Pochettino has effectively distanced himself and the north London club from a January deal for West Brom striker Saido Berahino -- a long-term target -- in highlighting Osvaldo's unsettling stint at St Mary's.

Osvaldo was suspended by Southampton for two weeks for headbutting Jose Fonte in a training-ground bust-up in January 2014, with three loans then preceding his August 2015 departure.